156 citations · 837 across the 48 of their papers we have counts for
29 papers · 1 filter
Static plane symmetric solutions in gravity
Jun-Qin Long, Rui-Hui Lin, Xiang-Hua Zhai
We systematically investigate static plane symmetric configurations in gravity. For vacuum regions, we discuss the constancy of the nonmetricity scalar and derive genera…
Viscous effect in the late time evolution of phantom universe
Jing Yang, Rui-Hui Lin, Chao-Jun Feng +1
We investigate the cosmological implications of a phantom dark energy model with bulk viscosity. We explore this model as a possible way to resolve the big rip singularity problem…
Quasinormal modes of the spherical bumblebee black holes with a global monopole
Rui-Hui Lin, Rui Jiang, Xiang-Hua Zhai
The bumblebee model is an extension of the Einstein-Maxwell theory that allows for the spontaneous breaking of the Lorentz symmetry of the spacetime. In this paper, we study the qu…
Viscous cosmology in gravity
Jing Yang, Rui-Hui Lin, Xiang-Hua Zhai
We propose a new model for the viscosity of cosmic matters, which can be applied to different epochs of the universe. Using this model, we include the bulk viscosities as practical…
Realistic neutron star models in gravity
Rui-Hui Lin, Xiao-Ning Chen, Xiang-Hua Zhai
We investigate the nonrotating neutron stars in gravity with , where is the torsion scalar in the teleparallel formalism of gravity. In particular, we uti…
Superradiant instability of the Kerr-like black hole in Einstein-bumblebee gravity
Rui Jiang, Rui-Hui Lin, Xiang-Hua Zhai
An exact Kerr-like solution has been obtained recently in Einstein-bumblebee gravity model where Lorentz symmetry is spontaneously broken. In this paper, we investigate the superra…
Spherically symmetric configuration in gravity
Rui-Hui Lin, Xiang-Hua Zhai
General relativity can be formulated equivalently with a non-Riemannian geometry that associates with an affine connection of nonzero nonmetricity but vanishing curvature a…
Examining the weak cosmic censorship conjecture by gedanken experiments for an EMDA black hole
Hai-Feng Ding, Xiang-Hua Zhai
In the framework of the new version of the gedanken experiments proposed by Sorce and Wald, we investigate the weak cosmic censorship conjecture (WCCC) for an Einstein-Maxwell-Dila…
Dynamics of Viscous Phantom Universe
Ji-Yao Wang, Chao-Jun Feng, Xiang-Hua Zhai +1
The phantom dark energy remarkably boosts our prehension of the accelerating Universe. Various models are widely discussed in the phantom Universe without bulk viscosity. From the…
Entropies and The First Laws of Black Hole Thermodynamics in Einstein-aether-Maxwell Theory
Hai-Feng Ding, Xiang-Hua Zhai
Using the solution phase space method, we investigate the thermodynamics of black holes in Einstein-aether-Maxwell theory, for which the traditional Wald method (covariant phase sp…
Probing the conformal invariance around the nonsingular static spherical black holes with waves
Rui-Hui Lin, Rui Jiang, Yang Huang +1
Conformal invariance can ameliorate or eliminate the singularities residing in the black holes, and may still exist in the strong gravity regimes close to these black holes. In thi…
Multi-pole Dark Energy
Chao-Jun Feng, Xiang-Hua Zhai, Xin-Zhou Li
While a scalar field with a pole in its kinetic term is often used to study the cosmological inflation, it can also play the role of dark energy, which is called the pole dark ener…
New proper tetrad for teleparallel gravities in non-flat spacetime
Rui-Hui Lin, Xiang-Hua Zhai
The restoration of spin connection clarifies the long known local Lorentz invariance problem in telelparallel gravities. It is considered now that any tetrad together with the asso…
Wormholes without exotic matter in nonminimal torsion-matter coupling gravity
Rui-Hui Lin, Zhen-Yuan Wu, Xiang-Hua Zhai
Wormholes are hypothetical tunnels that connect remote parts of spacetime. In General Relativity, wormholes are threaded by exotic matter that violates the energy conditions. In th…
Generalized Birkhoff theorem and its applications in mimetic gravity
Xin-zhou Li, Xiang-hua Zhai, Ping Li
There is undetermined potential function in the action of mimetic gravity which should be resolved through physical means. In general relativity(GR), the static spherically…
On the instability for massive scalar fields in Kerr-Newman spacetime
Yang Huang, Dao-Jun Liu, Xiang-hua Zhai +1
It is known that a massive charged scalar field can trigger a superradiant instability in the background of a Kerr-Newman black hole. In this paper, we present a numerical study of…
Diagnostics for generalized power-law torsion-matter coupling model
Xiang-Hua Zhai, Qiang Wen, Rui-Hui Lin +1
The currently accelerated expansion of our Universe is unarguably one of the most intriguing problems in today's physics research. Two realistic non-minimal torsion-matter coupling…
Massive charged Dirac fields around Reissner-Nordström black holes: quasibound states and long-lived modes
Yang Huang, Dao-Jun Liu, Xiang-hua Zhai +1
The behavior of a massive charged test Dirac field in the background of a Reissner-Nordström black hole is investigated. Especially, we obtain the frequencies of quasibound states…
Scalar clouds around Kerr-Sen black holes
Yang Huang, Dao-Jun Liu, Xiang-Hua Zhai +1
In this paper, the behaviour of a charged massive scalar test field in the background of a Kerr-Sen black hole is investigated. A kind of stationary solutions, dubbed scalar clouds…
Action functional of the Cardassian universe
Xiang-hua Zhai, Rui-hui Lin, Chao-jun Feng +1
It is known that the Cardassian universe is successful in describing the accelerated expansion of the universe, but its dynamical equations are hard to get from the action principl…
Vaidya solution and its generalization in de Rham-Gabadadze-Tolley massive gravity
Ping Li, Xin-zhou Li, Xiang-hua Zhai
We present a detailed study of the Vaidya solution and its generalization in de Rham-Gabadadze-Tolley (dRGT) theory. Since the diffeomorphism invariance can be restored with the St…
Spherical collapse and virialization in gravities
Rui-hui Lin, Xiang-hua Zhai, Xin-zhou Li
Using the classical top-hat profile, we study the non-linear growth of spherically symmetric density perturbation and structure formation in gravities. In particular, three…
Solar system tests for realistic models with nonminimal torsion-matter coupling
Rui-Hui Lin, Xiang-Hua Zhai, Xin-Zhou Li
In the previous paper, we have constructed two models with nonminimal torsion-matter coupling extension, which are successful in describing the evolution history of the Univ…
Towards realistic models with nonminimal torsion-matter coupling extension
Chao-jun Feng, Fei-fei Ge, Xin-zhou Li +2
Using the observation data of SNeIa, CMB and BAO, we establish two concrete models with nonminimal torsion-matter coupling extension. We study in detail the cosmological imp…